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Technical process for treating air conditioner coating waste water

A technology for coating wastewater and process flow, applied in water/sewage treatment, flotation water/sewage treatment, neutralized water/sewage treatment, etc. The effect of improving living environment and improving biodegradability

Inactive Publication Date: 2019-07-12
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the wastewater produced in the coating process is of various types and complex components, the discharge from the production workshop is irregular and intermittent, the water quality is uneven, the concentration of pollutants is high, and the biodegradability is poor; the wastewater mainly contains resins, surfactants, heavy metal ions, Pollutants such as pigments have become a more difficult type of wastewater to treat

Method used

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  • Technical process for treating air conditioner coating waste water
  • Technical process for treating air conditioner coating waste water
  • Technical process for treating air conditioner coating waste water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0043] For an air conditioner manufacturing company, the wastewater quality and discharge are as follows:

[0044]

[0045] The emission requirements are as follows:

[0046]

[0047]

[0048] The indicators of industrial water quality (GB / T 19923-2005) for urban sewage recycling are:

[0049] serial number monitoring project Emission standard (mg / L) 1 pH 6.5-9 (dimensionless) 2 COD / 3 BOD ≤10 4 SS ≤10 5 Petro / 6 anionic surfactant / 7 Ammonia nitrogen / 8 animal and vegetable oil /

[0050] Processing effect:

[0051]

[0052]

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PUM

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Abstract

The invention discloses a technical process for treating air conditioner coating waste water. The technical process comprises a pretreatment system, a physicochemical treatment system and a biochemical-physicochemical combined treatment system which are connected in sequence, and are respectively connected with a sludge treatment system, wherein an oil separation sedimentation tank and an aerationregulating tank in the pretreatment system are connected with each other; a coagulation inclined tube sedimentation tank, a coagulation floatation tank and an intermediate water tank in the physicochemical treatment system are connected in sequence; a hydrolysis acidification pool, a contact oxidation tank, a physicochemical sedimentation tank and a coagulation reaction inclined plate sedimentation tank in the biochemical-physicochemical combined treatment system are connected in sequence; a sludge concentration tank, a sludge spiral pump and a plate-and-frame filter press in the sludge treatment system are connected in sequence. The technical process has the characteristics that domestic waste water and production waste water are combined and enter the pretreatment system, the biodegradability of the waste water is improved, a technology is designed according to features the air conditioner coating waste water, and an acid feeding device is additionally designed to adjust pH.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, and in particular relates to a process flow for treating waste water from air conditioner coating. Background technique [0002] The coating process is an inevitable and important link in the production process of air conditioners, and its main function is to prevent product corrosion and beautify the product. [0003] However, the wastewater produced in the coating process is of various types and complex components, the discharge from the production workshop is irregular and intermittent, the water quality is uneven, the concentration of pollutants is high, and the biodegradability is poor; the wastewater mainly contains resins, surfactants, heavy metal ions, Pollutants such as pigments have become a more difficult type of wastewater to treat. Contents of the invention [0004] The purpose of the present invention is to provide a process flow for the treatment of air-conditionin...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F11/122C02F101/30
CPCC02F1/24C02F1/40C02F1/5236C02F1/56C02F1/66C02F3/02C02F9/00C02F11/122C02F2001/007C02F2101/30
Inventor 郑刘根林雨丰王宏夏紫薇吕亚静
Owner ANHUI UNIVERSITY
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